I ordered an X1 mid August and picked it up on Tuesday (8th Feb), so just under a 6month wait. I was also told they were pulled as probably not able to make any more before the model is due to finish.
I guess that they will stop production of the current X1 when the summer factory closure happens, as that’s when they generally re-tool for new models. If the current lead time is 6 months that would make sense. I’m not optimistic that the new model will appear on the Motability scheme though, but I hope that I’m wrong.
I hope that you enjoy your new X1. We are 6 months into ours and are very happy with it. It’s a huge improvement on the VW Tiguan that it replaced. Any questions, just ask.